Improvement in artificial fuel



UNITED STATEs PATENT OEEIoE.

EBENEZER BURGESS WARREN, OF PHlLADELPHIA, PENNSYLVANIA.

lMPROVEMENT IN ARTIFICIAL FUEL.

Specification forming part of Letters Patent No. 220,321, dated October 7, 1879; application filed April 14, 1879.

To all whom it may concern:

Be it known that LEBENEZEE BURGESS WARREN, of the city and county of Philadelphia, in the State of Pennsylvania, have invented a new and useful Improvement in Artificial Fuel, of which the following is a specification.

It is found that the lumps of artificial fuel made of anthracite or bituminous coal (lust and the ordinary coal-tar pitch are somewhat brittle, and lose in bulk by handling and transportation. To avoid this is the object of my invention; and the nature of the invention consists in the mixing of a composition'obtained by dissolving ordinary coal-tar pitch with petroleum tar, or wax tailings, in the proper proportion to produce the required consistency with cuhn, which is commonly known by the name of coal-dust. The said componame of coal-dust, in the manufacture of artificial fuel, substantially as set forth.

E. BURGESS WARREN. Witnesses:

THOMAS J. BEwLEY STEPHEN UsTIoK. 

